For all versions of this game except PlayStation 2 version, this is the first Karaoke Revolution (2003) video game series where the player has a choice to use a "Microphone Stand" other than the initial "Hand Held Microphone".

This is the last Karaoke Revolution (2003) video game series to be released on the PlayStation 2. All future sequels and installments of the series will continue on with the 256-bit next-generation systems and later.

Although this is the second Karaoke Revolution video game series to have an American Idol feature, this is the first Karaoke Revolution video game series to feature an online competition mode where the players can compete against each other for a high score in singing.

Randy Jackson: Yeah baby, yeah! You already know, I loved it, loved it, loved it, it was da bomb. Another good performance, man. And that what we come to expect from you. Bringin' it. I love it, I love it!